File Name
Vibrating Wire Soil Extensometer
Resource Type
Brochure| Language | Version | Download |
|---|---|---|
| English | EXB0011K |
 |
Vibrating Wire Soil Extensometer
The RST Vibrating Wire Soil Extensometer is developed to monitor lateral and longitudinal deformation of soil and different types of embankments and embankment dams.
Overview
The RST Vibrating Wire Soil Extensometer is developed to monitor lateral and longitudinal deformation of soil and different types of embankments and embankment dams.
The instrument consists of a vibrating wire displacement sensor encased in a sealed body. The body contains a telescopic outer PVC pipe fitted with two flanges and an inner stainless steel rod. One end of the rod is attached to the flange, while its other end is connected to a displacement sensor attached to the other flange. As deformation occurs, the telescopic pipe moves with the soil causing the rod to operate the displacement sensor.
VIBRATING WIRE SOIL EXTENSOMETER SPECIFICATIONS
| ITEM | SPECIFICATION |
| Gauge Lengths | 1 m and 2 m – with 0.5, 1, 2 and 3 m long extension kits |
| Sensor Range | 50, 100, 150, 200 mm |
| Accuracy | +/- 0.25 % FSR |
| Resolution | 0.02% FSR |
| Linearity | 0.25% FSR |
| Thermal Zero Shift | <0.05% FSR/°C |
| Operating Temperature | -20°C to 80 °C |
| Instrument Body / Flange Diameter | 28 mm / 280 mm |
| Signal Cable – EL380004 | Two twisted pair cable with polyurethane jacket |
Vibrating Wire Soil Extensometers are commonly used to monitor lateral and longitudinal deformation of soil and different types of embankments and embankment dams.
View illustrations on how Vibrating Wire Soil Extensometers are used for concrete face rockfill dams.
Vibrating Wire Soil Extensometer Ordering Info
| SENSOR RANGES | PART # |
| 50 mm (1 m gauge) | EXSR-1050 |
| 100 mm (1 m gauge) | EXSR-1100 |
| 150 mm (1 m gauge) | EXSR-1150 |
| 200 mm (2 m gauge) | EXSR-1200 |
| EXTENSION KIT LENGTHS | PART # |
| 0.5 m | EXSR-0500 |
| 1.0 m | EXSR-1000 |
| 2.0 m | EXSR-2000 |
| 3.0 m | EXSR-3000 |
| FLANGE | PART # |
| End Flange (1 required per chain) | EXSR-0000 |
| ITEM | PART # |
| Signal Cable | EL380004 |
File Name
Vibrating Wire Soil Extensometer Manual
Resource Type
Manual| Language | Version | Download |
|---|---|---|
| English | EXM0078J |
|
Speak with an Expert
I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd
